OpenSearch

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**Aim** To support migration of existing Doc Rep cluster to/from Remote backed cluster which has Remote backed Segment , and Translog enabled. RFC : https://github.com/opensearch-project/OpenSearch/issues/7986 **Tenets** 1. Data integrity -...

gbbafna

[BUG] dynamic_template throws class_cast_exception

2

### Describe the bug I trying to use dynamic_templates to map nested objects in a document as `flat_object` but receive the following error which has something to do with dotted...

sharathganga

[RFC] Search Query Sandboxing: User Experience

24

Co-Author @kkhatua #8879 - [RFC] High Level Vision for Core Search in OpenSearch #11061 - [RFC] Query Sandboxing for search requests A common challenge with managing resources on OpenSearch clusters...

kiranprakash154

### Describe the bug The test case `org.opensearch.indices.stats.IndexStatsIT.testQueryCache` is flaky: ``` org.opensearch.indices.stats.IndexStatsIT.testQueryCache {p0={"search.concurrent_segment_search.enabled":"true"}} java.lang.AssertionError: Expected: a value greater than but: was equal to at __randomizedtesting.SeedInfo.seed([7AED6FF3EC36E493:A11A38E0BF8ED38D]:0) at org.hamcrest.MatcherAssert.assertThat(MatcherAssert.java:18) at org.junit.Assert.assertThat(Assert.java:964) at...

reta

[Feature Request] Support more efficient encoding of filters over many terms

1

### Is your feature request related to a problem? Please describe I recently read [this blog post](https://luis-sena.medium.com/improve-elasticsearch-filtering-performance-10x-using-this-plugin-8c6485516c1a), where the author claims a 10x speedup on a large terms query. I...

msfroh

Support wildcard/regex for indices param in _remotestore/_restore

34

### Description - _remotestore/_restore will now support wildcards/regex for indices param. - Specifying body - `{ "indices": ["my-index-*"] }` will match all indices whose name start with `my-index-` and trigger...

linuxpi

[Searchable Snapshot] Fix bug of Searchable Snapshot Dependency on repository chunk_size

2

### Description This PR is still in draft version and purpose of this PR is to get some feedback on the approach for resolving the issue. Once approach is finalized...

Rishikesh1159

[Backport 2.x] Allow composite aggregation under filter or reverse_nested parent

5

Backport 24b0cc92eceb3fa8ade8ce4c10268bd60fe6fd64 from #11499.

opensearch-trigger-bot[bot]

[Backport 2.x] Cleanup file cache on deleting index/shard directory

4

Backport c564ee35ec000c38fe9d525a4b6add90cfc969fc from #11443.

opensearch-trigger-bot[bot]

feat: constant keyword field

17

### Description Adds a Constant Keyword Field ### Related Issues Resolves #9981 ### Check List - [x] New functionality includes testing. - [ ] All tests pass --> CI blocked...

hasnain2808